clk: s2mps11,s3c64xx: Add SPDX license identifiers

Replace GPL v2.0 and v2.0+ license statements with SPDX license
identifiers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/include/dt-bindings/clock/samsung,s2mps11.h b/include/dt-bindings/clock/samsung,s2mps11.h
index b903d7d..5ece35d 100644
--- a/include/dt-bindings/clock/samsung,s2mps11.h
+++ b/include/dt-bindings/clock/samsung,s2mps11.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2015 Markus Reichl
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Device Tree binding constants clocks for the Samsung S2MPS11 PMIC.
  */